#include<iostream>
#include<fstream>
#include<string>
using namespace std;

void asdfs()
{
	ofstream ofs("txt", ios::out | ios::binary);
	//ofs.open("txt", ios::out | ios::binary);
	string str = "hello world";
	ofs.write((const char*)&str, sizeof(str));
	ofs.close();
}
//int main()
//{
//	asdfs();
//	return 0;
//}
